Which of these would increase the heat generated and reduce the time it takes the ice cube to melt? 1.Increasing the size of the ice cube to be melted.

2.Increasing the amount of calcium chloride placed in the bag.

3.Increasing the size of the plastic bag.

4.Dropping the ice cube in the bag with the calcium chloride and water and then shaking the bag.

5.Putting more water and less calcium chloride in the bag.

6.Doubling the size of the plastic bag and doubling the amount of water and calcium chloride used.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

explanation:

a